Is mcp@0.7.4 safe to install?

mcp@0.7.4

VERIFIED

Publisher claims: "Signed sandbox verdicts on any artifact, plus an agent marketplace. No key, no signup, no payment." Observed in sandbox: calls mcp.kenwea.com only, touches nothing outside the project, writes no memory.

Registry npm (MCP server) · listed in the official MCP RegistryPublisher kenwea · publishing for 118 daysInstalls 29,087Last detonated 4d ago

$claude mcp add mcp -- npx -y @kenwea/mcp

Watch Report an issue

Coverage

Server started and answered tools/list.

Tested: MCP initialize and tools/list · every tool description, for hidden instructions · every file read, file written and host contacted by what ran
Not tested: what the tools do when called with real credentials

Before you give it your token

It will ask for: KENWEA_API_KEYConfiguration, not credentials: KENWEA_AGENT_KEY, KENWEA_CORRELATION_ID, KENWEA_MCP_PROTOCOL_VERSION, KENWEA_MCP_URL
Where it talks to: kenwea.com (its own)Also yarnpkg.com — not the publisher's domain; check what for before connecting.
What the honeypot saw: no credential files read · reached only mcp.kenwea.com (its own)
What we could not test: what the tools do when called with real credentials

Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names yarnpkg.com as well as its own vendor. The guard injects KENWEA_API_KEY only into requests to kenwea.com (and its subdomains) and refuses the rest.

$vet-skills run --secrets KENWEA_API_KEY=kenwea.com -- npx -y @kenwea/mcp

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-11-10 and scored it 91/100 (Verified). It did what it claims and nothing else we could detect: no undeclared network egress, no credential reads, no persistent instruction writes. Summary: calls mcp.kenwea.com only, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 20 s · 2 scenarios · 0 deviations

t+CategoryObserved action

0.0sprocessno install scripts in bundle

20snetworkCONNECT tcp://mcp.kenwea.com:443

20sclaimed29 tools: kenwea.agent.getIdentity, kenwea.agent.sendHeartbeat, kenwea.analytics.getForecast, kenwea.collab.create, kenwea.collab.join, kenwea.community.ask, kenwea.dependencies.watch, kenwea.jobs.getStatus, kenwea.marketplace.getProduct, kenwea.marketplace.install, kenwea.marketplace.preview, kenwea.marketplace.publish, kenwea.marketplace.purchase, kenwea.marketplace.search, kenwea.notifications.ack, kenwea.notifications.list, kenwea.observer.getFeed, kenwea.onboarding.registerSelf, kenwea.onboarding.startOperatorAgent, kenwea.orders.deliver, kenwea.orders.listRequests, kenwea.orders.submitBid, kenwea.procurement.listDecisions, kenwea.recommendations.listRelatedProducts, kenwea.reputation.getGraph

20sprocessscript backend runs setup only

20sprocessno install scripts to re-run

Static findings

MEDIUM

npx invocation of non-well-known packagepackage.json:5 · npx invocation of non-well-known package — may execute untrusted code

"description": "Get a third-party sandbox verdict on any artifact in one command, with no account: npx @kenwea/mcp check <url>. Also the stdio<->HTTP MCP bridge to mcp.kenwea.com.",

Fix: Pin versions and sources; vendor anything fetched at install time.

AST06

MEDIUM

npx invocation of non-well-known packageSKILL.md:6 · npx invocation of non-well-known package — may execute untrusted code

Get a third-party sandbox verdict on any artifact in one command, with no account: npx @kenwea/mcp check <url>. Also the stdio<->HTTP MCP bridge to mcp.kenwea.com.

Fix: Pin versions and sources; vendor anything fetched at install time.

AST06

Cost to the agent

Instructions loaded

≈74 tok

1 file · 15 in bundle

Tool list per prompt

≈8,297 tok

29 tools · 286 per tool

Handshake

2382 ms

launch to tools/list, stdio

Undocumented tools

description under 20 chars · avg 514

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for @kenwea/mcp@0.7.4 as of 4d ago. This is the package itself, not its dependencies.